Premium Rapid Home / Travel Charger (with IC CHIP) for Samsung SCH-U550, SCH-U410, SCH-U620, SCH-U340 / Snap, SCH-U520, SCH-A870 / Siren Intelligent IC chip inside recognizes a fully charged battery and automatically switches to a saver. Plug never heats or overcharges the battery. LED charging indicator light shows charging status. Quickly charges most batteries. High Quality Durable Unit and Cord. Comfortable ergonomic design.